Gas-engine valve.



W. E. HALLETT.

GAS ENGINE VALVE. PPLIOAI'ION FILED 00T. 16, 1909.

1,038,878-, Patented sept. '17, 1312.`

WELLIAM'. HLLET', OF BUCYRUS, 02H10.

GAS-ENGINE VALVE.

peoication of LettersPatent.

Patented Sept. 1912.

Application led Qctober 1d, 1909. Serial No. 523,057.

To all whom t may concern Be it known that I, WiLLIAM E. HALLE'rr, a citizen of the United States of America, residing at Bucyrus, in the county of Crawford and State ofOhio, have inventedA certainl new and useful Improvements in Gas- Engine Valves, of which ther following is a specication, reference beingr had therein to the accompanying drawings.

The invention relates to gas engines, and particularly in the means for controlling the engine by variations in the explosive mixture.

To this end, the invention consists in the novel' construction and arrangement of valves for controlling the ingredients of the explosive mixture, and in the construction of the operating controlling mechanism of said valves,las hereinafter set forth.

ln the drawings, the engine is represented in section in the plane of the valves, showthe valve F is so located as to control corn-4 munication between said` chambers. The valve Gr is mount-ed on a Stem K, which cX- tends upward and outward through the chest and through a bearing L., on which the valve-closing spring L is seated;

K is a collar on the stem, which is engaged` b1 a lever M actuated by the coperating ever it connected to the cccentrlc rod N operated by the eccentric hl",

The valve Hist mounted upon a sleeve H slidable upon the stem l@ and having a col. lar H2 at its upper end. 'l l,

O" a lever bearing at one end against the collar H2 and at its opposite end having a bearing for engagement with a collar 0 on the eccentric'rod N.- l

P is a shift-able ulcrum for the lever O,

'which is operated by a rock arm P connected bya lever system to a centrifugal governor Q.

R is an adjustable valve for rvariably restricting the admission of gas into the charm `position of adjustment, the

ber C, and S is a butterfly valve for restricting the air admission into the chamber D.

In operation, the valve G controls the admission of the mixture of gas and air into the cylinder, and the valve H controls the admission of leras to the mixture. The timing of the operation of these valves is such,l

that the valve G opens slightly in advance of the valve H, and consequently a volume any mixture of gas and air is produced. This, in the continuous operation or the engine, will have the effect of separating successive ex losive charges from the gases'in the cylin er by a layer of noncombustible' gas, thereby preventing danger of preigni- -of air is lirst admitted to the cylinder before v tion. The valve H when opened will admit the gas, so as to mix the same with the air y entering through the ports I, and the entire mixture lis passed by the valve G into the cylinder. The proportion 'of 'the mixture is dependent upon the degree o1"- opening' of the valve H, and this isyoontrolled by the adjustment of the fulcrum Pf, Thus, in one valve H is opened to the maximum, and a relatively large volume of gas' is admitted to be mixed with the air. 4 .Vhen, however, th'e governor operates to shiftthe fulcrum, the amplitude of movement of the valve will be diminished', y

and consequently asmall volume of gas'will be admittedto the mixing chamber.

It will be noted that, in the construct on described, puppet valvesare employed, Which are less likely to stick, or et out 0f order, than anyconstruct-ion or side valve.

What I claim as my 4inventionis: y

l. In an explosion engine, the combination with a cylinder, of a chest having an air chamber and a gas chamber, the former communicating through the main admission port withthe cylinder, and the latter communicating with said air chamber through' a port alined with the. admission port, a puppet valve for said main admission 'port aving a stem. extending through said alined port, a puppet valve for. said gas port sleeved upon the stem of said main valve,

' timed operating'rvnechanismy for the main i foe valve and an operating-mechanism orgthe,

gas valve comprising a lever engaging ,the

ystem of said valve, an o erating member enshiftable fulcruni for said lei er whereby the' ygauging the oppositeen y,of said lever, and a amplitude of movement impartedto said valve will be varied 2. 'In an explosion engine, the combination with a cylinder, of a mixing chamber directl)7 communicating through the main admission port with said cylinder, an air supply chamber in constant communication with the mixing chamber, a-gas chamber,

communicating With said mixing chamber through a port alined With the main admisport, means for varying the degree of opening of said gas valve, and means for open-y ing the main admission port valve in advance of the gas valve and for closing the gas valve in advance of the main admission port irrespective of the degree of opening of said gas valve. i

3l In an explosion engine, the combination With a cylinder of a mixing chamber communicating throu h the main admission port With said c vlin er, a .gas supply connection communicating ,with said mixing chamber, a valve controlling communication between said chamber aiid said connection, an air supply connection communicating v With the mixing chamber at a point intermediate the main port and the point of communication of the gas supply with the mixing chamber, means vtor varying the degree of openingof said gas valve, and means for opening the main admission port valve in nosas@ advance of the gas valve and for closing the gas valve in advance of the main admission port valve irrespective of the degree ot opening of said gas valve, said air supply being in all positions of adjustment of ,the gas valve in communication With the 'mixing chamber upon both the opening and closing 4. In an explosion engine, the combination with acylinder of a mixing chamber communicating through the main admission port with said cylinder, a gas suppl)T connection communicating with said mixing chamber, a valve controlling communication between said chamber and said connection, an' air supply connection in constant coInmunication with the mixing chamber at a point intermediate the main admission port and the point of communication of the gas supply with the mixing chamben'means for varying the degree of opening 'of said gas valve, and means tor opening the main adofl the gas valve.

mission port valve in advance of the gas valve and for closing the gas valve 1n ati- Vance of the mam admission port irrespec tive of the degree of opening of vsaid gas valve.

In testimony whereof I aiiix my signature in presence of two Witnesses.

WILLIAM E. HALLIYIT.I Witnesses:

IV. J. BELKNAP, JAMES I. BARRY. 

